Electrical-fixture fitting.



F. J. SMITH.

ELECTRICAL FIXTURE FITTING.

APPLIOATION FILED MAR. 5, 1914.

1,1 29,024. Patented Feb. 16, 1915.

FREDERICK-Z J'GHN SMITH, OF MONTREAL, QUEBEC, CANADA.

ELECTRICAL-FIXTURE FITTING.

Application filed March 5, 1914.

To aZZ whom it may concern Be it known that I, FREDERICK JOHN SMITH, a subject of the King of Great 'Eritain, and resident of the city of Montreal, Province of Quebec, Canada, have invented certain new and useful Improvements in Electrical-Fixture Fittings; and I do hereby declare that the following is a full, clear, and exact description of the same.

My invention relates to electric fixtures and appertains particularly to the connection between the lamp carrying member of the fixture and the member for supporting the latter upon the wall or ceiling.

In the past the lamp carrying member of an electric fixture has been screwed to the wall or ceiling supporting member and as after the lamp member was screwed to the supporting member there was not sufficient working space left between the wall or ceiling and the canopy upon the lamp member to enable the feed wires to be joined to the wires in the lamp mem er it was necessary to join the wires before the screwing up operation and as a consequence the screwing of the lamp member twisted. the wires and destroyed their insulating covering and weakened the wires.

The above mentioned disadvantages have been overcome by arrangements whereby the lamp supporting member can be connected to its support without the necessity of screwing and the object of the present invention is to provide such an arrangement which is more simple and inexpensive to construct, less cumbersome and more easily set up than former arrangements. For full comprehension, however, of my invention, reference should be had to the accompanying drawing forming a part of this specification in which similar reference characters indicate the same parts and wherein:

Figure 1 is a view illustrating my improved connection as applied to an insulated ceiling joint; Fig. 2 is a view of the same taken at right angles to Fig. 1; and Fig. 3 is a perspective view of the two members of the fixture detached.

In the drawings the supporting member is indicated at 2 and the lamp carrying member at 3, the adjacent ends of said members having abutting flanges thereon, the flange of one member being formed with a slot in one edge thereof and the flange of the other member with a lug of T-form Specification of Letters Patent.

Patented Feb. 16, 1915.

Serial No. 822,681.

adapted to be slipped into the slot from the side, the head of this lug extending transversely across the slot and holding the flanges together at that side while the flanges are held together at the other side by screws. The side portions of the flanges where they are secured to one another by screws are turned at substantially right angles so that the screws are substantially parallel with the surface to which the ture is attached, the wall or ceiling, as the case may be, of a room. Thus when the canopy upon the lamp carrying member permits but a slight clearance therebetween and the wall or ceiling the screws can be readily reached by a screw-driver and screwed home or unscrewed without clamage to the canopy due to the necessity of forcing the screw-driver down against the edge thereof.

My improved connection may be used with either a wall or ceiling fixture, with a crow-foot or as shown in the drawing. by way of example, with the insulated ceiling joint 9 which in the preferred construction, instead of having the lamp carrying memher 3 screwed thereto, has a member of plate form screwed upon the shank 4; thereof and forming a flange 5 slotted as before mentioned at one side at 6, the other side of the flange being formed with one or more lugs 7 with screw holes 7 and extending inwardly from the flange in a line substantially parallel with axial line of the joint 2.

The lamp carrying member has a member of plate form rigidly secured thereto, being preferably integral therewith and constituting a flange 8 having the before mentioned lug of T-form indicated at 9 at one side thereof and formed at the other side with one or more lugs 10 having screw holes 10 therethrough, the lugs 9 and 10 extending outwardly from the flange in a line substantially parallel to the axial line of the member 3.

In setting up the fixture, the wires 12 threaded through the lamp carrying memher 3, are joined to the feed wires 18 and the lamp member connected to the supporting member 2 by inserting the shank 9 of the T-form lug sidewise into the slot 6, the head of such lug then being located above the slot and extending transversely across the same to secure the two members together. The lugs 10 overlap the lugs 7 with the holes 10 and 7 in alinement'and, as particularly illustrated in Fig. 1, it will be seen that in this position screws 15, for securing the flanges in locking position, can be inserted in a line substantially parallel with the ceiling 16 thus requiring but a narrow space between the ceiling and the canopy 17 for the insertion of the screw-driver, particularly as the lugs, held together by the screws 15, extend inwardly toward the supporting member 2 and therefore toward the ceiling. In this way I avoid the difficulty experienced when the angular position of the securing screws requires a wider space, for the proper engagement of the screwdriver therewith, than can be presented by the limited movement, upon the member 3, of. the canopy away from the ceilin *What I. claim is as follows:

1. An electric fixture comprising a supporting member having a slot therein and being attached to a surface for carrying the fixture, a lamp carrying member having a lug of T-form adapted to enter said slot and lock the members together and means for securing the members in locking position including a screw passed through said members in a line substantially parallel with the surface to which the supporting member is attached.

2. An electric fixture comprising a supporting member having a flange thereon, one side of the flange being slotted and the other side formed with a lug disposed in a line substantially parallel with the axial line of the supporting member, a lamp carrying member having a flange thereon, one side of the flange having a lug of i -form adapted to enter said slot and the other side of the flange having a lug disposed in a line substantially pa allel with the axial line of the lamp carrying member and adapted to line of the latter, a lamp supporting. member and a screw passed through said overlapping lugs.

3. An electric fixture comprising a supporting member having a flange thereon, one side of the flange being slotted and the other side formed with a lug'extending inwardly toward the supporting member in a line substantially parallel with the axial line of the latter, a lam supporting member having a flange thereon, one side of the flange having a lug of T-form adapted to enter said slot and the other side of the flange having a lug extending outwardly from. the lamp carrying member in a line substantially parallel with the axial line of the latter and adapted to overlap the lug upon the supporting member and a screw passed through said overlapping lugs.

l. An electric fixture comprising a supporting member attached to a surface for carrying the fixture and having a flange thereon, one side of the flange being slotted and the other side formed with a lug extending inwardly toward said surface and the supporting member in a line substantially parallel with the axial line of the latter, a lamp supporting member having a flange thereon, one side of the flange having a lug of T-form adapted to enter said slot and the other side of said flange having a lug thereon extending toward said surface and outwardly from the lamp carrying member in a line substantially parallel with the axial line of the latter and adapted to overlap the lug upon the supporting member and a screw passed through said overlapping lugs and disposed substantially parallel with the surface to which the supporting member is attached.

5. An electric fixture comprising a supporting member attached to a surface for carrying the fixture and having a flange thereon, one side of the flange being slotted and the other side formed with a pair of lugs extending inwardly toward said surface and the supporting member in a line substantially parallel with the axial line of the latter, a lamp supporting member having a flange thereon, one side of the flange having a lug of T-form adapted to enter said slot and the other side of said flange having a pair of'lugs thereon extending toward said surface and outwardly from the lamp carrying member in a line substantially parallel with the axial line of the latter and adapted to overlap the lugs upon the supporting member and screws passed through said overlapping lugs and disposed substantially parallel with the surface to which the supporting member is attached. I

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

FREDERICK JOHN SMITH.

Witnesses:

STANLEY C. KING, JAMES C. FRASER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatents,

Washington, D. C. 

